Officials say Thailand's 85-year-old king is set to return to his seaside palace for the first time since being admitted to a Bangkok hospital for lung inflammation four years ago. King Bhumibol Adulyadej and Queen Sirikit are scheduled to travel Thursday to Klai Kangwon Palace in the town of Hua Hin, where they were living before the world's longest-reigning monarch was hospitalized in September 2009. Prachuap Khiri Khan provincial governor Veera Sriwattanatrakul said Wednesday that about 10,000 people were expected to welcome the king and queen in Hua Hin, 192 kilometers (119 miles) south of Bangkok, according to a report of the Associated Press.